Track-guided vehicle wheel truck

Abstract

A track-guided vehicle wheel truck prevents wear and deterioration of a guide wheel and a guide rail, and ensures running stability while simplifying the structure. In the track-guided vehicle wheel truck, a guide frame 8 to which a guide wheel 9 guided by a guide rail 1 is mounted, can turn relative to a steering axle 6 of a running wheel 5 . A support shaft 21 is provided on an axle bracket 20 provided in the steering axle 6 so as to be movable in the vehicle front and rear direction by straddling the steering axle 6 . A link lever 22 capable of interlocking the turning of the guide frame 8 and the steering of the running wheel 5 is provided along the vehicle front and rear direction. A vehicle end-side end part of the link lever 22 is rotatably mounted to a connecting rod 19 that enables the steering of the running wheel 5 . An intermediate part of the link lever 22 is rotatably mounted to the guide frame 8 . A long hole 22 a extending in the vehicle front and rear direction is provided in a center-side end part of the link lever 22 . The long hole 22 a and the support shaft 10 are rotatably engaged with each other at a given position.

1. A track-guided vehicle wheel truck including a pair of running wheels respectively connected to both ends of a steering axle by a kingpin, a guide wheel guided along a guide which is provided on a running track, and a guide frame to which the guide wheel is mounted, wherein the guide frame can turn relative to the steering axle, comprising:
 a tie rod being arranged along a vehicle width direction on a center side of a vehicle front and rear direction relative to the steering axle, and being capable of interlocking the pair of running wheels with each other; 
 a connecting rod being arranged on a vehicle end side of the vehicle front and rear direction relative to the steering axle, and being capable of steering one of the pair of running wheels; 
 a first steering arm arranged along the vehicle front and rear direction, and mounted to one of the kingpins of the pair of running wheels; 
 a second steering arm arranged along the vehicle front and rear direction, and mounted to the other of the kingpins of the pair of running wheels; 
 an axle bracket provided along the vehicle front and rear direction so as to straddle the steering axle in a center of the vehicle width direction of the steering axle; 
 a support shaft provided on the axle bracket such that position thereof can be adjusted in the vehicle front and rear direction so as to straddle the steering axle relative to the axle bracket; and 
 a link lever arranged along the vehicle front and rear direction; 
 wherein both end parts of the tie rod are rotatably mounted respectively to center-side end parts of the first steering arm and the second steering arm; 
 wherein both end parts of the connecting rod are rotatably mounted respectively to a vehicle end-side end part of the first steering arm and a vehicle end-side end part of the link lever; 
 wherein an intermediate part of the link lever is rotatably mounted to the guide frame; 
 wherein a long hole is provided in a center-side end part of the link lever so as to extend in the vehicle front and rear direction; and 
 wherein the long hole and the support shaft are rotatably engaged with each other at a given position. 
 
     
     
       2. A track-guided vehicle wheel truck according to  claim 1 , wherein a restoration mechanism capable of restoring the support shaft to an original position after moving the support shaft, is provided in the guide frame, and the support shaft is movable in the vehicle front and rear direction by an actuator provided in the steering axle. 
     
     
       3. A track-guided vehicle wheel truck according to  claim 2 , wherein the guide wheel is supported by a leaf spring provided in the guide frame, detecting means for detecting a displacement of the leaf spring, is provided, and control means for controlling the actuator corresponding to the displacement of the leaf spring detected by the detecting means, is provided. 
     
     
       4. A track-guided vehicle comprising the track-guided vehicle wheel truck according to  claim 1 .